<!DOCTYPE HTML>

<html>
  <head>
      <title>Internal server error!</title>
  </head>
  <style>
    .wrapper{
      margin: 4rem auto;
      max-width: 960px;
    }
  </style>
  <body>
      <div class="wrapper">
        <h1>
            500
        </h1>
        <h4>Internal server error</h4>
      </div>
  </body>
</html>
